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SoftwareElk Studios

Overview of Nitropolis slot

It is far too easy to moan about the lack of original concepts and features when it comes to slots development. There are always a handful of studios which will be head and shoulders above others, and as so the others simply copy or adapt the skills to create their own clone. Elk Studios have taken a bold step into an area it has not covered before. The unusual slot Nitropolis is based around four separate clans referred to as the Gritty Kitties, The Dirty Dawgs, the Rough Rats, and the Pug Thugs who are all fighting to get the green Nitro substance to fuel their cars. It will be interesting to see which category the developers will fit this slot into.

Game Play & Statistics

When you activate the slot for the first time you will see that this is not a typical Elk slot. The action takes place over 6-reels and offers a huge 4,096 ways to win game area. The slot is situated within an industrial environment of Nitropolis which is a city of the future inhabited by animals. The sensational soundtrack is it an electronic pop style which fades into punk during the bonus game. The soundtrack is excellent and will give Punk Rocker from the developers at Nolimit City a run for its money even though this is where the developers at Elk have drawn their inspiration in terms of mechanics and audio-visual design. This is not a bad thing though as the genuinely eclectic mix of ideas, themes and concepts works well with each other and provides a totally unique slot game.

Nitropolis can be played on all devices which gives players the freedom to play wherever and whenever they wish. The first thing players need to do is choose the bet they are most comfortable playing with, and this starts from 20p per spin to a maximum of £100 per spin. However, instead of activating one of the bets, players can choose from four bet strategies which are the Optimizer, the Leveller, the Booster, or the Jumper. This slot is highly volatile but suited to the levels of rewards and features that are on offer perfectly. The slot is busy and will provide you with a decent amount of playtime, although it is worth noting that the free spins can take a while to activate. I found it hard to put a figure on the statistics as the developers have not released the free spin frequency like they used to. The hit rate is provided, and this states that it sits at 19.8% in other words you will get a win every five spins or thereabouts. The return to player sets at 96.1% which is in line with other competitor's slots.

When it comes to the symbols these are all explained on the pay table and there are twelve regular symbols in total. The symbols are divided into low, medium, and high payers. Win combinations are made when you land between three and six symbols in any of the rows starting from the first reel on the left onwards. As there are so many potential ways you can win in Nitropolis, the values of single combinations are far lower than you may expect. Landing six of the medium paying symbols will reward you with 0.24x to 0.36x, landing six of the high symbols will provide you with 0.6x to 1x your stake. Whilst this is very low the features do you have plenty of potential. Finally, that is a strange looking mushroom cloud which is the games wild and can substitute for all other symbols apart from the scatter bonus symbol to create winning combinations. In the free spins feature the wild can also substitute for the scatter symbol to create a scatter win.

Feature Bonuses

To begin with, the features in this slot may appear confusing however they are far more straight forward once you read about them or see them in action for the first few times. The first feature is the winning re-spins which become active after every win you land in either the base or bonus game. All the symbols that are involved in the winning combination get to spin again which potentially leads to new win combinations. The re-spins continue until you have no further wins.

The next feature is completely new from Elk and is the trademarked mechanic which they have named Nitro Reels™ and this can appear on any of your reels. The symbols in this mechanic cover two positions and can contain anything from 4, 6, 8, 10, or 12 symbols which then have an impact on the number of ways you can win, in other words the default 4,096 times can get ridiculously high in fact up to 85,155,840! Nitro Reels™ can also upgrade the ways to win at random between the free spins and re-spin, and there is also a chance that the Nitro Reels™ can randomly spin again for a second chance where no additional wins have been landed.

The highlight in this slot has to be the bonus game which you can activate by landing 3, 4, 5, or 6 scatters in view on the base game and you will be rewarded with 10, 15, 20, or 25 free spins respectively . Landing three or more of the bonus symbols during the feature will also reactivate the same number of spins. Before the feature starts one symbol is chosen at random to be the scatter paying symbol and if you land three or more scatter paying symbols on three or more different reels you are rewarded with a win. The main benefit comes from the Nitro Reels™ as they are sticky and remain in place for the full duration of the feature.


There is no doubt that this slot can be a little confusing, however if you take the time to look at the pay table it will be far easier to understand. Failing to do this could see you trigger the free spins and be left completely unsure of why you have landed a win. However, Nitropolis is not a complicated game and after you have played a few rounds and mastered the re-spins and Nitro Reels™ the whole thing becomes clear and really is a huge amount of fun.
Unsurprisingly, there will be some who do not agree with the concept or get how the complex mix of scatter pays, re-spins on Nitro Reels™ can work to their advantage. Nitropolis is not the kind of slot you would play to unwind as it is bold and daring with a strange theme that sees an adorable bunch of weird animals’ rule where humanity no longer exists.

The gameplay in this slot does provide a huge dose of originality and you will come across some familiar features that you may have tried in competitive slots, such as the special symbol scatter pays which have a real ring of the book of RA complete with the high voltage, and this slot is also reminiscent of Nolimit’s xWays mechanic. Overall, the slot does have its own unique qualities as well as providing solid potential up to 10,000x your bet. However, with 85 million ways to win I would expect the potential to be higher but having said this the potential is exciting enough and higher than this developer would usually offer.

I enjoyed playing this slot immensely, the character symbols were as funny as they were cute, and the back story is totally unique. I would rate this lot as a solid 8/10 and highly recommend players to give it a spin or two.

SoftwareElk Studios


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